Spatio-temporal variability of dryness/wetness in the Danube River Basin
The present study focuses on the analysis of dryness/wetness conditions in the Danube River catchment area from 1901 to 2013 based on reanalysis data. The spatio-temporal variability of dryness/wetness conditions is analyzed by means of the Standardized Precipitation Index (SPI) for an accumulation...
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JOHN WILEY & SONS LTD
2015
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Online Access: | https://epic.awi.de/id/eprint/37781/ http://onlinelibrary.wiley.com/doi/10.1002/hyp.10514/abstract https://hdl.handle.net/10013/epic.45497 |
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ftawi:oai:epic.awi.de:37781 2024-09-09T19:25:45+00:00 Spatio-temporal variability of dryness/wetness in the Danube River Basin Ionita, Monica Scholz, Patrick Chelcea, Silvia 2015-04-14 https://epic.awi.de/id/eprint/37781/ http://onlinelibrary.wiley.com/doi/10.1002/hyp.10514/abstract https://hdl.handle.net/10013/epic.45497 unknown JOHN WILEY & SONS LTD Ionita, M. orcid:0000-0001-8240-4380 , Scholz, P. orcid:0000-0003-2692-7624 and Chelcea, S. (2015) Spatio-temporal variability of dryness/wetness in the Danube River Basin , Hydrological Processes . doi:10.1002/hyp.10514 <https://doi.org/10.1002/hyp.10514> , hdl:10013/epic.45497 EPIC3Hydrological Processes, JOHN WILEY & SONS LTD, ISSN: 0885-6087 Article isiRev 2015 ftawi https://doi.org/10.1002/hyp.10514 2024-06-24T04:12:21Z The present study focuses on the analysis of dryness/wetness conditions in the Danube River catchment area from 1901 to 2013 based on reanalysis data. The spatio-temporal variability of dryness/wetness conditions is analyzed by means of the Standardized Precipitation Index (SPI) for an accumulation periods of 6 months. To characterize the spatial variability of SPI6 at monthly time scales an Empirical Orthogonal Function (EOF) analysis was applied. The leading mode of SPI variability captures in-phase variability of SPI over the entire catchment area of Danube River. The leading mode of dryness/wetness variability was found to be strongly related to the different phases of the Arctic Oscillation. The second and third modes of variability show a more regional character of the dryness/wetness variability over the Danube River catchment area. Based on a composite map analysis, between the time series corresponding to the first three leading modes of dryness/wetness variability and the geopotential height at 850mb and precipitation totals, it is shown that dryness (wetness) conditions over the Danube catchment area are associated with an anticyclonic (cyclonic) circulation, transport of dry (humid) air towards the Danube catchment area and reduced (enhanced) number of rain days. Article in Journal/Newspaper Arctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Hydrological Processes 29 20 4483 4497 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The present study focuses on the analysis of dryness/wetness conditions in the Danube River catchment area from 1901 to 2013 based on reanalysis data. The spatio-temporal variability of dryness/wetness conditions is analyzed by means of the Standardized Precipitation Index (SPI) for an accumulation periods of 6 months. To characterize the spatial variability of SPI6 at monthly time scales an Empirical Orthogonal Function (EOF) analysis was applied. The leading mode of SPI variability captures in-phase variability of SPI over the entire catchment area of Danube River. The leading mode of dryness/wetness variability was found to be strongly related to the different phases of the Arctic Oscillation. The second and third modes of variability show a more regional character of the dryness/wetness variability over the Danube River catchment area. Based on a composite map analysis, between the time series corresponding to the first three leading modes of dryness/wetness variability and the geopotential height at 850mb and precipitation totals, it is shown that dryness (wetness) conditions over the Danube catchment area are associated with an anticyclonic (cyclonic) circulation, transport of dry (humid) air towards the Danube catchment area and reduced (enhanced) number of rain days. |
format |
Article in Journal/Newspaper |
author |
Ionita, Monica Scholz, Patrick Chelcea, Silvia |
spellingShingle |
Ionita, Monica Scholz, Patrick Chelcea, Silvia Spatio-temporal variability of dryness/wetness in the Danube River Basin |
author_facet |
Ionita, Monica Scholz, Patrick Chelcea, Silvia |
author_sort |
Ionita, Monica |
title |
Spatio-temporal variability of dryness/wetness in the Danube River Basin |
title_short |
Spatio-temporal variability of dryness/wetness in the Danube River Basin |
title_full |
Spatio-temporal variability of dryness/wetness in the Danube River Basin |
title_fullStr |
Spatio-temporal variability of dryness/wetness in the Danube River Basin |
title_full_unstemmed |
Spatio-temporal variability of dryness/wetness in the Danube River Basin |
title_sort |
spatio-temporal variability of dryness/wetness in the danube river basin |
publisher |
JOHN WILEY & SONS LTD |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/37781/ http://onlinelibrary.wiley.com/doi/10.1002/hyp.10514/abstract https://hdl.handle.net/10013/epic.45497 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
EPIC3Hydrological Processes, JOHN WILEY & SONS LTD, ISSN: 0885-6087 |
op_relation |
Ionita, M. orcid:0000-0001-8240-4380 , Scholz, P. orcid:0000-0003-2692-7624 and Chelcea, S. (2015) Spatio-temporal variability of dryness/wetness in the Danube River Basin , Hydrological Processes . doi:10.1002/hyp.10514 <https://doi.org/10.1002/hyp.10514> , hdl:10013/epic.45497 |
op_doi |
https://doi.org/10.1002/hyp.10514 |
container_title |
Hydrological Processes |
container_volume |
29 |
container_issue |
20 |
container_start_page |
4483 |
op_container_end_page |
4497 |
_version_ |
1809895482912145408 |